براغي رأس مقبس 1/4-20 × 1-3/4 بوصة | محرك سداسي منخفض الرأس | فولاد سبائكي مع أكسيد أسود حراري (100/عبوة)

Needed a solid set of bolts for a jig I'm building, and these low head hex screws fit perfectly into tight spots. The threads are sharp and clean, and the black oxide coating seems durable. Worked great for my tooling project.

The thermal black oxide finish actually held up well during assembly without flaking off, and the hex socket drive made tightening in tight corners much easier than I expected. Just the right length for my precision fixture setup.

Perfect size for my jig project, the low head profile lets me get into tight spaces without clearance issues. Threads caught clean and the black oxide finish seems durable so far, no complaints on these.